FBI: California shooters were radicalized 'for quite some time'

The husband and wife who killed 14 people in last week's shooting rampage in San Bernardino, California were both radicalized "for quite some time," the FBI official in charge of the investigation said Monday, according to AFP.

David Bowdich, the FBI's assistant director in charge of the Los Angeles field office, said investigators were still trying to determine how and by whom Syed Farook and his wife Tashfeen Malik were radicalized before the December 2 shooting.